♦
Check more frequently if the floating ring (E) is
stuck.
♦
Remove the floating ring (E), counter ring (D) and
guide ring (F) (see chapter
DustProtector/Removal).
♦
Clean the space in front of the flexible wiper (A)
of all loose dust.
♦
Check the wiper (A) for damage.
♦
Replace the wiper (A) if it is damaged.
♦
Check the inside diameter of the floating ring (E)
with a suitable test gauge or with a inside calliper.
D
max
Size information
on test gauge
Type
170 mmØ 165HB 3100 DP
175 mmØ 170HB 3600 DP
190 mmØ 185HB 4100 DP
195 mmØ 190HB 4700 DP
The diameter measured must not exceed the
maximum permissible diameter D
max
.
♦
If it has eroded so much that its inside diameter
has become too great, replace the floating ring (E).
♦
Clean and grease the floating ring (E), counter
ring (D) and guide ring (F) and install them again
(see chapter DustProtector/Installation).
Piston accumulator
The pressure in the piston accumulator is measured
at the filling valve (G). The piston accumulator is also
filled through this valve.
HB 3100, HB 3100 DP
HB 4100, HB 4100 DP
47© 2012 Atlas Copco Construction Tools GmbH | No. 3390 5096 01 | 2012-04-26
Original instructions
MAINTENANCEHB 3100, 3100 DP, 3600, 3600 DP, 4100, 4100 DP,
4700, 4700 DP
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